Power distribution network transmission loss classification and evaluation method and apparatus

Abstract

The invention discloses a power distribution network transmission loss classification and evaluation method and an apparatus wherein the method comprises: according to the power grid structure, the physical parameters of equipment, the operation characteristics of the power grid, the power consumption structure characteristics, the natural and social development and other indexes, creating a determination matrix for experts to score; obtaining the influencing weights of the influencing factors determined by the experts on the power distribution network transmission loss; establishing the mathematical models for the various indexes to make a quantitative analysis of the influences of these influencing factors on the wire loss; and finally, in combination of the influencing weights determined by the scoring of the experts and the evaluation results determined by the evaluation models, estimating the influences of these influencing factors on the power distribution network transmission loss. The establishment of such evaluation system provides a scientific and reasonable division method for the establishment of power distribution network wire loss indexes and makes the management of power distribution network wire loss fairer, more comprehensive and more authoritative so that it is possible to adjust the annual loss rate indexes allocated to various county-level companies properly in real time, to provide strong data support for scientific decisions and to generate good economic and social gains.

Description

technical field [0001] The invention belongs to the technical field of distribution network loss, and in particular relates to a classification and evaluation method and device for distribution network loss. Background technique [0002] For the domestic distribution network, the main problem in the analysis and calculation of power grid loss is the incomplete measurement data of the medium and low voltage distribution network, so only approximate estimation methods can be used. North China Electric Power University, China Agricultural University, etc. have proposed a method to generate non-measurement point power data based on electricity value, typical load curve, and state estimation technology, providing support for accurate analysis and calculation of power grid theoretical line loss. Conventional distribution network loss reduction and energy saving technology has long been confirmed and widely used. Since 1998, State Grid Corporation of China and China Southern Power...

AI Technical Summary

Problems solved by technology

[0003] However, the existing network loss evaluation system is not perfect, the fairness and comprehensiveness of the rural network line loss management are low, and the annual line loss rate indicators allocated to the rural power county companies cannot be adjusted in a timely and reasonable manner, and the economic and social benefits are relatively poor.

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